/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package cn.zch.test.netty.proxy;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import lombok.extern.slf4j.Slf4j;
/**
 * @author zchcpywin10
 */
@Slf4j
public final class HexDumpProxy {
  static final int LOCAL_PORT = Integer.parseInt(System.getProperty("localPort", "8081"));
  static final String REMOTE_HOST = System.getProperty("remoteHost", "192.168.1.115");
  static final int REMOTE_PORT = Integer.parseInt(System.getProperty("remotePort", "8082"));
  public static void main(String[] args) throws Exception {
    log.info("Proxying *:" + LOCAL_PORT + " to " + REMOTE_HOST + ':' + REMOTE_PORT + " ...");
    // myLog.info("Proxying *:" + LOCAL_PORT + " to " + REMOTE_HOST + ':' + REMOTE_PORT + " ...")
    // Configure the bootstrap.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
      ServerBootstrap b = new ServerBootstrap();
      b.group(bossGroup, workerGroup)
        //
        .channel(NioServerSocketChannel.class)
        //
        .handler(new LoggingHandler(LogLevel.DEBUG))
        //
        .childHandler(new HexDumpProxyInitializer(REMOTE_HOST, REMOTE_PORT))
        //
        .childOption(ChannelOption.AUTO_READ, true)
        //
        .bind(LOCAL_PORT)
        //
        .sync()
        //
        .channel()
        //
        .closeFuture()
        //
        .sync();
    }
    finally {
      bossGroup.shutdownGracefully();
      workerGroup.shutdownGracefully();
    }
  }
}
